胃肠道手术,术前禁食的主要目的()。
A.避免造成手术困难
B.避免术后腹胀
C.预防麻醉或手术中呕吐造成窒息
D.防止术后吻合口瘘
E.早期恢复胃肠蠕动
参考答案:C
— Hello, Sandy. This is Jack. What are you doing?
— I'm watching a match. It started at 7 p.m. and _____ on for another half an hour. [ ]
A. has been
B. was
C. had been
D. will be
对一般精神障碍患者,护理人员多长时间巡视1次( )
A.15~30分钟 B.30~50分钟C.1~2小时 D.2~2.5小时